Dot printing mechanism for dot matrix line printers

Dot printing mechanism for dot matrix line printers

Dot-matrix printer with font cartridge unit

Dot-matrix printer with font cartridge unit

Double line electrode unit for electro-coagulation printer...

Double speed dot matrix printhead

Double tab rack for a typewriter

Drive circuit for printing head

Drive for the movable portion of a printer

Drive mechanism

Drive mechanism for printer carriage and ink ribbon

Drive mechanism for transaction printer

Drive roller assembly

Driver circuit for a self-scanning light-emitting element array

Driver ic chip and print head

Driving force control system for impact printer

Drop charge compensated ink drop video printer

Drop charging apparatus

Drop charging bar

Drop dispensing device and method for its manufacture